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ICSE Class 10 Answered

Two circular loop of radii 10cm and 40cm carries current of 1A and 2A respectively. Find the ratio of magnitude of magnetic field at their centres

Asked by ayushmishradbb | 05 Nov, 2019, 05:49: PM
Expert Answer
M a g n e t i c space f i e l d space a t space t h e space c e n t r e space o f space t h e space l o o p equals fraction numerator mu subscript 0 I over denominator 2 R end fraction
B subscript 1 over B subscript 2 equals fraction numerator fraction numerator mu subscript 0 I subscript 1 over denominator 2 R subscript 1 end fraction over denominator fraction numerator mu subscript 0 I subscript 2 over denominator 2 R subscript 2 end fraction end fraction

B subscript 1 over B subscript 2 equals I subscript 1 over I subscript 2 cross times R subscript 2 over R subscript 1
B subscript 1 over B subscript 2 equals 1 half cross times fraction numerator 40 cross times 10 to the power of negative 2 end exponent over denominator 10 cross times 10 to the power of negative 2 end exponent end fraction
B subscript 1 over B subscript 2 equals 2 over 1
Answered by Utkarsh Lokhande | 05 Nov, 2019, 06:53: PM
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